How prokaryotes chromosomes differ from eukaryote?

Answer 1

A prokaryotic chromosome consists of a single molecule of DNA in the form of a closed loop. The chromosome is described as circular. A prokaryotic cell has only one chromosome. A eukaryotic chromosome is linear, not circular, in other words it has two ends, like a sausage. Each chromosome contains one molecule of DNA for the first half or so of interphase, then the DNA replicates, and the two DNA molecules remain together (as sister-chromatids) in the same chromosome for the rest of interphase. This does not happen in prokaryotic cells. Eukaryotic cells have more than onechromosome. A further difference: prokaryotic chromosomes consist only of a naked DNA molecule, but eukaryotic chromosomes also contain many molecules of proteins (mostly histones). The DNA is wound around these proteins.

Answer 2

The genetic material, DNA, is naked in prokaryotes. it is not complexed with any packaging protein.

Chromatin is strictly used for eukaryotic DNA, which is complexed with histone proteins. Thus, unlike prokaryotes, eukaryotes have their genetic material packaged tightly with the help of histone proteins. This packaging serves to compact DNA, so that 2 meter long DNA can fit inside a micrometer dimension of cell. At the same time eukaryotes need to transcribe DNA for which it should be made accessible. ATP-dependent remodelers help to unwound DNA. Specific acetylation and methylation of histone proteins also help to transcribe chromatin.

Thus, eukaryotic genetic material chromatin, is very complex in structure and cells have evolved over million of years to compact DNA, maintain and transcribe the chromatin structure.

Answer 3

The genomes of prokaryotes are contained in single chromosomes, which are usually circular DNA molecules.

In contrast, the genomes of eukaryotes are composed of multiple chromosomes, each containing a linear molecular of DNA.

Answer 4

The genomes of prokaryotes are contained in single chromosomes, which are usually circular DNA molecules.

In contrast, the genomes of eukaryotes are composed of multiple chromosomes, each containing a linear molecular of DNA.

Answer 5

Prokaryotic chromosomes are typically circular and found in the cytoplasm, while eukaryotic chromosomes are linear and housed within the nucleus. Prokaryotes have a single, compact chromosome, while eukaryotes possess multiple linear chromosomes. Additionally, prokaryotic chromosomes lack histone proteins, which are present in eukaryotic chromosomes and help in organizing DNA.

Answer 6

In eukaryotes the structure of the chromosome is like an elongated X while in prokaryotes it looks like a circle and is also known as a plasmid

Answer 7

Prokaryotic cells generally have 1 large, circular chromosome. Eukaryotic chromosomes are much shorter and generally exist in pairs.

Answer 8

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